baber/WOPTO huggingface dataset:
Patent GB-1409420-A (GB)
Title: Heat insulating elements
IPC: B22D7/10
Filed: 1972-10-04
Abstract: 1409420 Coated article FOSECO TRADING AG 26 Sept 1973 [4 Oct 1972] 45813/72 Heading B2E [Also in Division C3]  A hot top lining slab or sleeve for use in metal casting comprises a body of a refractory heat-insulating composition comprising particulate refractory material, fibrous material and a binding agent, having on at least the surface which in use is to be contacted by molten metal a coating comprising the residue after drying of a colloidal oxide hydrosol. Preferably the coating is formed of the solid residue remaining after removing water from silica hydrosol or alumina hydrosol. The element may be made by spraying the surface of the hot top lining slab or sleeve with the hydrosol, optionally prior to the final drying stage in its manufacture. Preferably the binding agent is also a colloidal oxide hydrosol. The coating may be formed by impregnating the formed hot top lining slab or sleeve, e.g. by dipping with the colloidal oxide hydrosol then drying in such a way that the hydrosol migrates to form a coating on the surface. The particulate refractory material may be sand, silica, flour, grog, chamotte, alumina. The fibrous material may be organic, inorganic or a mixture thereof. Preferred fibrous materials are slag wool, rock wool, calcium silicate fibre, alumino-silicate fibre and glass fibres. Other binders mentioned are sodium silicate, natural gum, dextrin, thermosetting urea-formaldehyde, phenol-formaldehyde or furane resin. In the example a mixture of 29% silica sand, 60% silica flour, 3% phenolformaldehyde resin, 3% slag wool, 5% paper pulp was slurried with water to give a solids content of 30% by weight and the slurry formed into slabs by deposition on a mesh, liquid being expressed by the application of vacuum or pressure and heat. The resulting slab was dipped into a bath containing silica hydrosol and the slab dried.
Patent GB-1096240-A (GB)
Title: Improvements in or relating to memories
IPC: G11C13/04
Filed: 1966-10-17
Abstract: 1,096,240. Modulating light. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 17, 1966 [Oct. 22, 1965], No. 46272/66. Heading H4F. [Also in Division G4] Information is stored in a crystal as the orientations of localized defects of lower symmetry than the symmetry of the crystal, electromagnetic radiation being used for writing information into the crystal. Dichroic defects may be orientated in one of two directions by light from one of two sources adapted to illuminate the crystal from different directions. The orientation established may be detected by measuring the transmitted intensity of light, having a lower incident intensity than for write-in, from one of the sources. Alternatively, M-centres in an alkali-halide crystal (KC1 and KI mentioned) may be orientated by plane polarized light from a selected one of two light sources, adapted to illuminate the crystal from different directions. In this case the orientation may be detected by measuring the transmitted intensity of plane-polarized light of a different wavelength incident on the crystal from a third direction. Other dichroic defects which may be used are suitable complexes of vacancies, interstitial atoms, impurity atoms, A-centres and other colour centres. Lasers may be used as light sources. Optical focusing may be provided for the light sources. An item of digital information may be stored by orientating similarly all the defects in a region of the crystal selected using light deflection apparatus to direct the light beams at the required region. Alternatively, a picture having contrast can be stored by varying the intensity of the writing light source from point to point, to produce variations in the concentration of defects having a particular orientation.
Patent GB-1078038-A (GB)
Title: Improvements in or relating to the preparation of fermentation products containing the monosodium salt of glumatic acid
IPC: C12P13/14
Filed: 1964-11-16
Abstract: Fermentation products containing monosodium L-glutamate are prepared by cultivating a glutamic acid - producing microorganism in a nutrient medium containing an assimilable carbohydrate source and an assimilable nitrogen source consisting of ammonia, ammonium hydroxide or urea, maintaining the pH of the medium within the range of 6 to 9 using appropriate additions of the nitrogen source, and after substantial L-glutamic acid is produced, adding sodium ions to the medium in sufficient quantity to produce sodium glutamate, further adding a non-hygroscopic, moisture-absorbent diluent material and drying the resulting product, e.g. by drum or spray drying.  Suitable diluent materials are corn starch, limestone, soybean meal and soybean hulls. Suitable micro-organisms are Brevibacterium divoricatum and Micrococcus glutamicus. The sodium ions may be provided by sodium hydroxide, carbonate or lactate.  The process may incorporate a decolourization or filtration step to improve the appearance of the final product.  The product may be subsequently mixed with glucose and magnesium stearate and formed into pellets or tablets.ALSO:Animal feed supplements containing monosodium L-glutamate are prepared by cultivating a glutamic acid-producing microorganism in a nutrient medium containing an assimilable carbohydrate source and an assimilable nitrogen source consisting of ammonia, ammonium hydroxide or urea, maintaining the pH of the medium within the range of 6 to 9 using appropriate additions of nitrogen source, and after substantial L-glutamic acid is produced, adding sodium ions to the medium in sufficient quantity to produce sodium glutamate, further adding a non-hygroscopic, moisture-absorbent diluent material and drying the resulting product, e.g. by drum or spray drying.  Suitable diluent materials are corn starch, limestone, soybean meal and soybean hulls.  The sodium ions may be provided by sodium hydroxide, carbonate or lactate.  The product may be subsequently mixed with glucose and magnesium stearate and formed into pellets or tablets.
Patent GB-990849-A (GB)
Title: Improvements in or relating to ultrasonic delay devices
IPC: C03C4/00
Filed: 1963-11-28
Abstract: An ultrasonic delay medium consists essentially, in moles per cent, of SiO2, 73.50-76.00; PbO, 14.70-16.70; K2O, 8.00-9.50; BaO, 0.50-1.50; Sb2O3, 0.05-0.20.
Patent GB-977365-A (GB)
Title: Photographic printing apparatus
IPC: G03B27/16
Filed: 1962-12-13
Abstract: 977, 365. Photographic copying apparatus. EASTMAN KODAK CO. Dec. 13, 1962 [Dec. 15, 1961], No. 47136/62. Heading G2A. In a photographic copying apparatus the exposure is made by scanning a beam of light across the image-bearing member by means of a rotating mirror. The drawings show a contact-printing apparatus in which the photosensitive material is a continuous film strip F, guided from a supply spool 13 to a take-up spool 15, and passing under a platen 25. The platen can be moved down by an arm 31 acting against a spring 3,3 to bring it into contact with the film. The original to be copied is a film F<1> mounted in a window in a card C, which is inserted through an opening 35 and is positioned by a stop 37 to underlie the film F under platen 25. The light source is a lamp 47 housed below the apparatus. Light from the lamp is reflected from a mirror 55 rotatably mounted within a light shield 57, the beam passing through apertured plates 53, 45 to fall on the assembly F, F<1>. The mirror has a rounded back 72 which effectively shuts off light from the lamp when the mirror has revolved sufficiently far. The mirror is driven by a motor, and its angular velocity determines the exposure period. As is shown in more detail in Fig. 4, the platen has a vacuum line 77 connected to an internal bore 81 and hence to passageways 85. Thus when a vacuum is applied, the platen is drawn firmly against the films F; F<1>, and holds them in close contact. A rubber gasket 89 round the base of the platen forms a seal. A printing cycle may be carried out automatically, Fig. 5 (not shown) being a suitable control circuit. The sequence of operations is initiated as card C is inserted into the apparatus, opening an interlock switch 43 and closing a trip switch 41; the lamp is energized, the vacuum pump switched on, the platen moved downwards to engage the films, the mirror rotated one revolution to scan the light beam across the exposure aperture, the platen lifted, and the film F advanced to the next exposure position. Several identical exposures may be made by incorporating a suitable counter.
Patent GB-957147-A (GB)
Title: Improvements in ziz-zag screw folders
IPC: B65H45/20
Filed: 1962-12-13
Abstract: 957,147. Folding paper. HAMILTON TOOL CO. Dec. 13, 1962 [March 15, 1962], No. 47158/62. Heading B6H. [Also in Division D1] A zig-zag screw folder for folding continuous webs comprises means for initially producing alternate opposed loops transversely of the web and a plurality of movable tucker elements, each having an end portion projectable into the loops positively to fold the outer ends thereof. As shown (Fig. 1), a multi-ply web 20 is fed by a pair of rollers 22,.24 into and through an oscillating shoot 26 which oscillates through a controlled arc as determined by gears 28, 30 and imparts alternate, opposed upper and lower loops A and B in the web. The loops A and B so formed are fed on to two laterally spaced sets of transversely spaced pairs of screw conveyers 40-42 and 50-52 (Fig. 2), which advance the folded web in zig-zag form away from shoot 26 and on to endless conveyer 61, 63. Associated with each conveying screw is a tucker element T which is pivotally mounted at 44 to the leading convolute of the respective conveying screw and has a blade portion Q which engages in the folds of the web and an actuating portion R which is supported for oscillatory and sliding movement in a pivot block 62. The arrangement is such that the blade portion Q is caused to enter each fold in turn, press down (up on the top folds) into the fold and wipe along the fold so as to prevent any possible infolding of the inside layers of the web. The blade is finally withdrawn from the fold and caused to enter the next succeeding fold. The vertical and lateral distance between the conveying screws is adjustable so as to produce folds of different depth and to deal with different widths of web. Brushes 92 are provided on the discharge end of shoot 26 to sweep the rearmost surface of the web as it is discharged.
Patent GB-1200637-A (GB)
Title: Harvesting apparatus
Inventor: CORIN CHRISTOPHER JOHN
IPC: B07B13/00
Filed: 1967-10-17
Abstract: 1,200,637. Root crop harvesters. FMC CORP. 17 Oct., 1967, No. 47203/67. Heading A1F. In a potato harvester the potatoes, vines and debris dug by blades 16 are directed on to an endless rod-conveyer 18 which conveys the material to an upper rear portion where the dirt and vines are removed. The potatoes and stones are dropped on to a transverse endless rod-conveyer 24 which delivers them on to an endless rodelevator 26 from which they pass on to an endless rod-type conveyer 32 which is driven by sprockets 37 and is guided around pulleys, e.g. 42, 43, and around a roller 44 supported on levers 48 and adjustably positioned by means of hydraulic cylinders 52. The conveyer 32 carries the mixtures of stones and potatoes across the mouth of a hood 60 where a stream of air induced by a fan 61 lifts the potatoes and separates them from the stones which remain on the conveyer and are discharged on a take-away conveyer 90. The potatoes are separated from the airstream by means of a freely rotatable, perforated drum 79 extending across the hood and drop on to a conveyer belt 70 which delivers them to an endless discharge conveyer 74.
Patent GB-1478425-A (GB)
Title: Electrical ring trip circuit
IPC: H04M19/02
Filed: 1975-11-18
Abstract: 1478425 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 18 Nov 1975 [25 Nov 1974] 47430/75 Heading H4K A ring trip circuit comprises an opto-electric current detector coupled via a low pass filter to the line, a capacitor which is caused to discharge in response to line loop current detected by the detector, and an operational amplifier responsive to discharge of the capacitor beyond a threshold for tripping an, e.g. ringing relay. In response to a control signal, ringing relay RC comes up so as to couple a ringing generator to a called subscriber's line. Low pass filter R12, C2 and Zener diode ZD2 ensure that only a marginal current flows through a photodiode QD during each ringing burst. The diode is turned on briefly during alternate half cycles of the ringing current, whereby photo transistor Q1 conducts and thereby causes capacitor C1 to discharge. The discharge time is limited however unless the called line is looped in which case, the discharge is sufficient to cause operational amplifier AMP 1 to change its output state. As soon as it does so, transistor Q2 conducts in a feedback path which ensures that the AMP1 stays in this state irrespective of a fluctuating charge/discharge of C1 during alternate half cycles. Additionally Q3 turns-off to drop RC and thus trip ringing and incidentally permit the ring trip circuit to reset. It is pointed out that if the called party replies during a ringing burst, it may take C1 as long as 200 msecs to discharge sufficiently to trigger AMP1 but allegedly this is of no consequence.
Patent GB-1273616-A (GB)
Title: Production of 2,2-dimethyl-3-hydroxypropanal
IPC: C07C45/75
Filed: 1969-09-26
Abstract: 1,273,616. 2,2-Dimethyl-3-hydroxypropanal. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 Sept., 1969 [27 Sept., 1968], No. 47540/69. Heading C2C. 2,2-Dimethyl-3-hydroxypropanal is prepared by reacting isobutyraldehyde with 0À5 to 1À5 molar proportions of formaldehyde in the presence of a tertiary amino group-containing material and water. As well as many acyclic and cyclic amines, ion-exchangers having tertiary amino groups are specified, e.g. macroporous poly(dimethylamino-alkylstyrene).
Patent GB-1402335-A (GB)
Title: Sealing arrangement in a sliding and tilting window of the exposure time
IPC: E06B7/23
Filed: 1972-10-16
Abstract: 1402335 Windows WILH FRANK GmbH 16 Oct 1972 [12 Nov 1971 25 Feb 1972] 47566/72 Heading E1J A tilting and sliding window or door has an elastic sealing strip 13, and a member 17 on the lower rail of the wing frame extending below the horizontal pivot axis and pressing transversely against the fixed frame when the window is closed, to increase the engagement of seal 13. Member 17 has a bar 20 carrying rollers 31 which run and tilt on rail 22. When the window is closed, flange 25 on member 17 resiliently engages rail 22 and seal strip 13 engages bar 14. At the top of the window, a device 32 comprises a link 33 pivoted to a member 36 slidable in head rail 1. Link 33 and auxiliary link 34 are pivoted to the wing frame.
Patent GB-1324207-A (GB)
Title: Insole construction
IPC: A43B13/41
Filed: 1971-10-13
Abstract: 1324207 Boots &c HEINRICH JOSEF WINTER KUNSTSTOFFVERARBEITUNG UND WERKZEUBAU GmbH 13 Oct 1971 [13 Aug 1971] 47669/71 Heading A3B  An insole includes a main parts 1' having a reinforcement 4 of plastics material in its shank and heel region and a separate cover layer 3 of the same size and shape as the heel and shank portion of the main part. The insole is made by placing the main part 1' and cover layer 3 (Fig. 3) in an injection mould an injecting the reinforcement 4, the connection between the main part 1' and cover layer 3 being such as to allow the plastics material to flow between the main part 1' and the cover layer 3. The insole may also include a spring steel shank stiffener 2. The stiffener 2 is connected to the main part 1' before moulding by punching tabs 5, 6, in the main part 1' and slotting the tabs 5, 6 through apertures 7, 8 in the siffener 2. The tab 5 is also slotted into an aperure 9 in the cover layer 3 to connect he cover layer 3 to the main par 1'. Alernatively the cover layer 3 may be stapled or tacked to the main part. The main part 1' has an aperture or recess 10 which allows the plastics material 4 to flow around the stiffener 2. The main part 1' may be made of leather, cardboard, non-woven fabric or pressed fibre and the cover layer 3 may be of the same material but thinner than the main part 1'. The plastics material 4 may be polyethylene, polypropylene or polystyrene.
Patent GB-1259816-A (GB)
Title: Sweeping machine
Inventor: GUTBROD WALTER
IPC: E01H1/08
Filed: 1969-09-29
Abstract: 1,259,816. Road - sweeping machine. W. GUTBROD and W. GUTBROD. 29 Sept., 1969 [24 Feb., 1969], No. 47785/69. Heading E1G. An automatically collecting road-sweeping machine comprises at least two brush cylinders 9, 10 mounted for rotation one above the other in a rearwardly inclined housing which opens into a sweepings-collecting container 22, the lower brush 9 contacting the ground and sweeping forwardly and the brushes co-operating to mechanically lift sweepings from the ground, and a blower (not shown) which generates an air current directed from the ground to the container 22 and is provided with a dust filter 26. Beaded edges 19, 17, 20 in the walls of the closely-fitting housing assist in directing the sweepings upwardly, and the brushes preferably rotate in the same direction. At the outlet 21, heavier particles fall into the container 22 and dust is drawn into the filter 26 which is connected with the blower by a passage 25, the dust falling into the container 22 when the blower is switched off. The drive for the bruhses 9, 10 and the blower is taken from an engine mounted in the machine, arranged so that the blower is always in action when the engine is running, to prevent sweepings in the housing from falling back. The walls 12, 13, 14 of the housing may be made at least partially of flexible material to allow adjustment of the positions of the brushes.
Patent GB-1387419-A (GB)
Title: Cut-off devices for continuous rod making machines
IPC: A24C5/28
Filed: 1971-10-14
Abstract: 1387419 Continuous-rod cut-off ledger MOLINS Ltd 13 Oct 1972 [14 Oct 1971] 47949/71 Heading A2C The ledger comprises a fixed member 2, 4 of approximately semi-circular cross-section which cooperates with a rotary member 8 to form a tube in which the continuous rod is supported during cutting, the member 8 having at least one guide part 10 formed with a slot 10A into which the cut-off knife 12 enters during the final stage of each cut, the position and timing of the member 8 being so arranged that the slot 10A is substantially at right angles to the axis of the rod 6 just as the cut is being completed. In the embodiment described, the knife 12 is situated behind the rod, the axis of rotation of the rotary member 8 is inclined to the horizontal, and the rod-supporting surface (10B) of the member 8 is substantially symmetrical about a plane normal to the axis of rotation. The device is adjustable to accommodate different lengths of cut.
Patent GB-1373443-A (GB)
Title: Ore dredgers
IPC: E02F7/02
Filed: 1972-10-19
Abstract: 1373443 Ore dredger INDUSTRIEELE HANDELSCOMBINATIE HOLLAND NV 19 Oct 1972 48228/72 Heading B7A An ore dredger comprises a floatable member 1, 2 having a slot 18 and arranged to float below the surface of a body of water. Columns 3, 4 connected to the member and extending above the water level support deck 6 and a bucket ladder 8 connected to upper structure 7 is mounted on the deck and extends through the slot. Winch 13 and cables 14 suspend the ladder in the slot and apparatus 10, 11, 12 on the deck processes dredged ore and discharges the waste material separated from the ore.
Patent GB-1403761-A (GB)
Title: Sheet control arrangements
IPC: G03B27/12
Filed: 1972-10-20
Abstract: 1403761 Contact printing RICOH KK 20 Oct 1972 [17 Nov 1971 2 Feb 1972] 48377/72 Heading G2A In the automatic contact printing of a predetermined number of copies 8 of a single original 7 held between an internally illuminated continuously rotating cylinder 1 and an endless driving belt 4, operation of a push-button switch 31 causes teeth 9A/B (in the position of Fig. 1) to grip the leading edge of original 7 just before the nip between cylinder 1 and belt 4 and anticlockwise rotation of teeth-carrying rings 18 in synchronism with cylinder 1. Rings 18 are halted temporarily on a complete rotation until the trailing edge of original 7 passes a sensor 32 (allowing copying of an original of greater length than the circumference of cylinder 1) whereafter the cycle is repeated until a pre-set counter (fed with a signal each time the leading edge of original 7 passes sensor 32) causes opening of teeth 9A/B (in the position of Fig. 7) adjacent a suction tank 14 allowing original 7 to be passed by an endless belt 13 to a discharge tray 15. Teeth 9A/B are preferably of thin transparent material. A clockwise biased shaft 23 (to which teeth 9A are rigidly connected and teeth 9B are pivotally connected with an anti-clockwise bias) is rotated anti-clockwise to open teeth 9A/B by the action of a solenoid-operated lever 27 on a roller 26 carried by an arm 25 rigidly connected to shaft 23. Teeth 9A/B are similarly closed by, the reverse action of a solenoid-operated lever 27. Teethcarrying rings 18 are driven by belt 4 through a control connection (22), Fig. 5 (not shown), having an electromagnetic clutch and brake. Photo-sensitive sheet material is fed automatically from a roll 8A and a cutter 17 to the nip between cylinder 1 and belt 4 at the same time as original 7 and, after exposure, is removed from cylinder 1 by means of a suction tank 10 and passed through a development station 11 to a receiving tray 12.
Patent GB-1467049-A (GB)
Title: Double acting piston assembly for compressing fluid
IPC: F25B27/00
Filed: 1974-11-11
Abstract: 1467049 Reciprocating compressors G B MIELITZ 11 Nov 1974 [27 Nov 1973 (3)] 48743/74 Heading F1N A refrigerant compressor for mounting between relatively movable suspension system components of a vehicle comprises an outer cylinder 1, a hollow piston 8 slidable within the outer cylinder 1, an inner piston 12 slidable within the hollow piston 8, and a piston-rod 13 secured to the inner piston 12 and having a passage 31 therethrough for the entry of fluid for compression. Fluid entering the passage 31 flows through a passage 33 controlled by valves 15 into chambers 20 inside the hollow piston 8. When each chamber 20 is contracted by relative movement of the piston 12, fluid therein is forced through a valve 9 or 11 into the adjacent outer chamber 21 for delivery past a valve 2 or 3 to an outlet 5. If the stroke of the piston 12 is sufficiently great it strikes the ends of the hollow piston 8 and causes the piston 8 to compress further that fluid which has previously been forced into the chambers 21.
Patent GB-1418668-A (GB)
Title: Artificial sleigh run
IPC: A63G21/00
Filed: 1972-10-24
Abstract: 1418668 Artificial sleigh track I E KAYE and R PROCHASKA 23 Jan 1974 [24 Oct 1972] 48880/72 Headings A6D and A6M [Also in Division B7] An artificial sleigh run comprises a substantially U-section track made from a synthetic material, e.g. glass fibre reinforced plastics provided with a securing means 6 to hold it in its use position. The track may be made up of a number of interconnectible track members which may be straight Fig. 1 or may be curved banking members Figs. 2, 3 and 4. Each track member has at one end a recess 5, Fig. 6 formed on its inner surface and at the other end locking pins 7 formed on the outer surface of the base. Lengths of track are joined by inserting the pins 7 of one member into holes 8 formed through the recess in an adjoining member thus forming a continuous smooth inner surface. The artificial sleigh run may include a takeoff station, a U-section track which is set into the ground and which follows the natural downhill contours of the ground and an end-station having an upwardly inclined track section for retarding a sleigh after its descent. Sleighs for use with this track may be of conventional design but with modified runners see Division B7.